Handlify JSReceiver::SetElement method.

R=rossberg@chromium.org

Review URL: https://codereview.chromium.org/23541006

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16448 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Reland "Fix missing x87 tracking for deferred code."

Fixed mac build.

BUG=
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23490022

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@16449 ce2b1a6d-e550-0410-aec6-3dcde31c8c00